Need help wiring an aftermarket CD player

[reecetas7196]

I just recently bought a 69 Chevy C20 and didn't come with a radio in it. The previous owner had installed some speakers and a cd player, but took the player out before I bought it so all thats left is the speaker wires and a few other wires that I'm not sure about. I need help figuring out how to wire in my new Kenwood cd player. I know which wires to connect for the speakers but not the others. If anyone could help me out that would awesome! Thanks